MILLIMETER WAVELENGTH FOCUSED PROBES AND FOCUSED, RESONANT PROBES FOR USE IN STUDYING IONIZED WAKES BEHIND HYPERSONIC VELOCITY PROJECTILES
Abstract
Strongly focused microwave beams are being used as a plasma diagnostics tool in the determination of the magnitu spatial distribution of ionization behind projectiles fired at hypersonic velocities into the controlled atmosphere of a flight physics range. The importance of milli meter wavelength techniques for this purpose is stressed. The design philosophy of focused plasma probes is outlined and specific details of 35 and 70 Gc probes are given, together with some typical results. The conversion of such a probe into a free- space resonator in which the resolu tion is preserved, but in which the sensitivity is greatly improved, is discussed and some preliminary results are given.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1963
- Accession Number
- AD0413158
Entities
People
- R. A. Hayami
- R. I. Primich